The third generation of zhengzhou; supersonic flame spraying HVOF system upgrade
2015/6/13 view:
The company producedHV-80HVOF system upgrading of the third generation, the system is the use of aviation kerosene and high pressure oxygen in special high temperature and high speed combustion flame flow from the burning of the combustion chamber, the powder radial flow into flame, obtain high bonding strength, the density of high quality coating.
Receive various performance of coating was obviously higher than that of other HVOF system, mainly reflected in the following aspects.
1. Use for kerosene fuel, accelerant for oxygen, models in the market at present is the most safe combustion mode;
2. The spray gun structure based on design of principle of rocket generators chamber pressure of 150 psi, flame flow rate of more than 2000 m/s, the output power and can be adjusted;
3. The spray gun using radial send powder, powder is the new injection method can better melt and evenly distributed throughout the flames, to improve the efficiency and quality of coating;
4. System design will be located in a certain range, temperature range will speed increase as the main objective function of structural optimization;By X-ray diffraction test proves that the equipment made by coating not only high bonding strength, coating density is high, and the surface stress is compressive stress;
5. Modular design, high performance PLC control, safe operation is simple;
6. Particles of the cause of combustion design speed of 1100 m/s (3300-3300 per feet per second), HVOF system significantly faster than others;
7. Thickness of coating layer is more than 10 mm (compressive stress coating), microhardness is higher than any other HVOF system (HV - 80 type spraying WC - Co coating microscopic hardness up to 1450, and other gas HVOF spray gun spraying WC - Co coating microhardness was only about 900 ~ 1100);
8. HV - 80 achieved excellent high-pressure HVOF coating quality, the coating bond strength of up to 90 mpa.
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